US4095512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding of uniform diameter tubes
Assignee: Arrow Paper Products Co
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Filing: 1976-04-08
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Granted: 1978-06-20
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Expires: 1996-04-08
Abstract
Abstract The winding of tubes of substantially uniform diameter from sheet stock which varies in thickness comprises slitting the stock along one edge as it is unwound from a supply roll to form a web of predetermined width and subsequently cutting the web transversely to form successive blanks of predetermined length and width which are wound upon themselves from one side to the other to form convolutely wound tubes. Should the diameter of the tubes vary due to an increase or decrease in the thickness of the sheet stock, the width of the web is varied inversely with changes in the thickness of the stock.
Inventors
- 👤 Martin H. Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
B; B31; B31C; B31C1/00; B31C1/08; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/538
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
In a method of winding substantially uniform diameter tubes from a web of varying thickness sheet material which is cut transversely at successive intervals to form blanks of predetermined length and width, each of which blanks subsequently is wound upon itself from one side edge thereof toward its other side edge to form a tube, the improvement comprising varying the width of successive blanks inversely with changes in the thickness of said sheet material.
Claim 2
Dependent Claim
74 words
In a method of winding substantially uniform diameter tubes from a web of varying thickness sheet material which is cut transversely at successive intervals to form blanks of predetermined length and width, each of which blanks subsequently is wound upon itself from one side edge thereof toward its other side edge to form a tube, the improvement comprising varying the width of successive blanks inversely with changes in the thickness of said sheet material.
Claim 3
Dependent Claim
22 words
A method according to claim 1 including skiving said other side edge of each of said blanks prior to its being wound.
Claim 4
Dependent Claim
21 words
A method according to claim 1 wherein said sheet material is wound on a roll from which said web is unwound.
Claim 5
Dependent Claim
24 words
A method according to claim 1 wherein said web is cut longitudinally along one side thereof prior to its being cut transversely into blanks.
Claim 6
Dependent Claim
29 words
A method according to claim 4 wherein said one side of said web is skived following its being cut longitudinally and prior to its being cut transversely into blanks.
Claim 7
Dependent Claim
26 words
A method according to claim 1 including applying a coating of adhesive to one surface of said web prior to its being cut transversely into blanks.
Claim 8
Dependent Claim
12 words
A method according to claim 1 wherein said web is moved continuously.
Claim 9
Dependent Claim
20 words
A method according to claim 7 including skiving said other edge of said web prior to its being cut transversely.
Claim 10
Dependent Claim
20 words
A method according to claim 8 including maintaining substantially constant the skived area of said other edge of said web.
Claim 11
Dependent Claim
151 words
Apparatus for use in the winding of substantially uniform diameter tubes from a web of varying thickness sheet material unwound continuously from a roll and subsequently cut into successive blanks which are wound upon themselves to form said tubes, said apparatus comprising cutting means for cutting said web longitudinally thereof adjacent one edge thereof; means mounting said cutting means for movements transversely of said web; operating means for moving said cutting means transversely of said web as the latter is unwound from said roll; sensing means operable to sense changes in the thickness of said sheet material; and control means coupling said cutting means and said sensing means and responsive to sensing by the latter of a change in thickness of said sheet material to move said cutting means transversely of said web in such direction as to vary the width of said sheet material inversely with changes in its thickness.
Claim 12
Dependent Claim
151 words
Apparatus for use in the winding of substantially uniform diameter tubes from a web of varying thickness sheet material unwound continuously from a roll and subsequently cut into successive blanks which are wound upon themselves to form said tubes, said apparatus comprising cutting means for cutting said web longitudinally thereof adjacent one edge thereof; means mounting said cutting means for movements transversely of said web; operating means for moving said cutting means transversely of said web as the latter is unwound from said roll; sensing means operable to sense changes in the thickness of said sheet material; and control means coupling said cutting means and said sensing means and responsive to sensing by the latter of a change in thickness of said sheet material to move said cutting means transversely of said web in such direction as to vary the width of said sheet material inversely with changes in its thickness.
Claim 13
Dependent Claim
46 words
Apparatus according to claim 10 including skiving means for skiving one edge of said web; means mounting said skiving means for movements transversely of said web; and operating means for moving said skiving means transversely of said web as the latter is unwound from said roll.
Claim 14
Dependent Claim
33 words
Apparatus according to claim 11 including means interconnecting the operating means of said cutting means and the operating means of said skiving means for effecting simultaneous operation of both of said operating means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |